US 9,814,161 B2
Electronic device rack and information processing apparatus
Masao Kondo, Sagamihara (JP); Hiroyuki Fukuda, Ebina (JP); Shigeyoshi Umemiya, Fujisawa (JP); and Hiroshi Endo, Isehara (JP)
Assigned to FUJITSU LIMITED, Kawasaki (JP)
Filed by FUJITSU LIMITED, Kawasaki-shi, Kanagawa (JP)
Filed on May 29, 2014, as Appl. No. 14/290,910.
Application 14/290,910 is a continuation of application No. PCT/JP2011/077791, filed on Dec. 1, 2011.
Prior Publication US 2014/0268547 A1, Sep. 18, 2014
Int. Cl. H05K 7/00 (2006.01); H05K 7/20 (2006.01); G06F 1/20 (2006.01)
CPC H05K 7/20736 (2013.01) [G06F 1/206 (2013.01); H05K 7/20818 (2013.01); H05K 7/20836 (2013.01); G06F 2200/201 (2013.01); Y02B 60/1275 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An electronic device rack comprising:
a plurality of panels surrounding a first space which is a part of a space in a room;
an electronic-device housing unit disposed in the first space and that houses an electronic device;
a heat exchanger disposed in the first space at a position away from the electronic-device housing unit;
a second space provided between the electronic-device housing unit and the heat exchanger and isolated from the rest of the first space;
an air blower that is disposed in the first space and that circulates air inside the first space through the electronic-device housing unit, the second space, and the heat exchanger in the described order;
a first temperature sensor that is disposed in the first space and that detects a temperature of the air after passing through the electronic-device housing unit and before passing through the heat exchanger;
a second temperature sensor that is disposed in the first space and that detects a temperature of the air after passing through the heat exchanger; and
a controller that controls the air blower according to the temperatures detected by the first temperature sensor and the second temperature sensor,
wherein the controller controls the air blower to maintain a rotational weed of the air blower in a case where a difference between the temperature detected by the first temperature sensor and the temperature detected by the second temperature sensor is equal to or above a predetermined value, and controls the air blower to decrease the rotational speed of the air blower in a case where the difference between the temperature detected by the first temperature sensor and the temperature detected by the second temperature sensor is below the predetermined value.